Grundfos SQE Constant Pressure System

The compact 3” diameter pump allows placement in small boreholes of the same size, or even 4” boreholes that have become smaller due to ochre deposits. Other pumps with similar capacities are usually 4” in diameter.

The pumps are equipped with permanent magnet motors (PM motor). The motors have a built-in electronic unit containing a frequency converter featuring soft start. Soft start reduces the starting current which gives the pump a smooth and steady acceleration; this minimises the risk of wear on the pump and prevents overloading of the mains.

Grundfos SQE pump systems are suitable for both continuous and intermittent operation. Some suitable applications include:
►Domestic water supply
►Small irrigation systems
►Water pressure boosting

The SQE pressure system includes:
►SQE 3" pump
►CU301 control unit
►Pressure sensor
►Expansion vessel

The system contains everything you'll need, it's very easy to install and virtually maintenance free. The system offers constant water pressure despite varying demands.

The intelligent control unit is capable of monitoring and displaying the systems performance continuously whilst also providing dry run protection and other features that guarantee a long pump life.

Advantages
►Dry run protection
►Permanent magnet motor with high efficiency
►Wear resistance from floating impellers
►Protection against upthrust
►High flow velocity
►Over and under voltage protection
►Overload protection
►Over temperature protection
►Variable motor speed controls (with connection to CU301)

Specifications
►Maximum liquid temperature: 35°C
►Connection: 1-1/4" B.S.P. Female
►IP68 class F insulation

Materials
►Pump body: AISI 304 Stainless Steel
►Stainless steel casing pump

Please note: Some of the models on the datasheet have been discontinued. Please call us on 01777 871100 if you are unsure which system is best suited to your requirements.